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Cambridge Journal of Economics 28:89-97 (2004)
Cambridge Journal of Economics, Vol. 28, No. 1, © Cambridge Political Economy Society 2004; all rights reserved

Switches and fake switches in methods of production

Christian Bidard and Edith Klimovsky*

Address for correspondence: Christian Bidard, Department of Economics, University of Paris X-Nanterre, 200 avenue de la République, F-92001 Nanterre, France; email christian.bidard{at}u-paris10.fr

JEL classifications D200, D290

It has long been recognised that Sraffa's analysis of the choice of methods in joint production cannot be sustained, so that post-Sraffian economists have abandoned it. The paper returns to Sraffa's own approach and identifies two characteristic elements: methodologically, it is of a ‘dynamic’ nature (it considers a potential move of the rate of profits) and, analytically, the switch-points are the common intersection of several wage–profit curves. An internal critique consists in showing the existence of fake switches, which are at the intersection of two wage–profit curves but, unexpectedly, are not switch-points.

Key Words: Change of methods • Fake switch • Joint production • Sraffa

Manuscript received April 30, 2001; final version received January 28, 2002.


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